Printing frame



Dec. 18,1923. 1,478,217

D W. GRAY PRINTING FRAME Filed sent. 5. 1920 J 2 Sheets-Sheet 1 7/, fi 115952 Gfa%, Z5

A TTURNEYS WITNESSES Dec. 18 1923.

1,473,217 D w. GRAY PRINTING FRAME Filed Se 5 92 2 Sheets-Sheet 2 Z I WQZ5 ATTORNEYS INVENTOR ray,

Patented Dec. 18, 1923.

UNITED STATES PATENT OFFICE.

D. WEBB GRAY, OF LOS ANGELES, CALIFORNIA, ASSIGNOR OF ONE-HALF T0 W. T.LOUDER, OF LOS ANGELESB, CALIFORNIA.

PRINTING FRAME.

Application filed September 3, 1920.

To all whom it may, concern:

Be it known that I, D. lVnnn GRAY, a citizen of the United States. and aresident of Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented certain new and useful Improvements in Printing Frames, of which the following is a specification.

My invention is an improvement in printing frames, and has for itsobject to provide a frame of the character specified, adapted for useeither with natural or artificial light, and for adjustment at differentinclinations in order to facilitate admission of light from eithersource, and wherein there is provided a ruby glass holder so connectedwith the printing frame back that when the back is opened, the holder isclosed to shut off the actinic rays.

In the drawings Figure l is a side view of the improved printing frame,

Figure 2 is a longitudinal section,

Figure 3 is a front view,

Figure 4 is a section on the line 4-4 of Figure 2.

In the present embodiment of the invention a channel shaped hood 1 isprovided, having the top thereof closed by a plate 2 which is held inplace by a. latch 3 at one end. The side walls of the hood as shownincline downwardly from one end to the other, and each of the said endsthere is arranged a frame 4 and 5 respectively.

Within the frame 4 there may be arranged a light filter 6 as forinstance, ground glass or the like. At the opposite end a similar filter7 may be arranged, this filter being held by the inner end of the frame5.

The printing frame 8 is hinged to the upper cross member of the frame 5,and this frame has connected therewith an extension or hood 9. Thisextension or hood is channel shaped, the bottom being of considerablewidth, and the side walls decreasing in width toward the top, so thatthe upper cross member of the printing frame forms the top of theextension.

The bottom or lower side of the extension has a rib 10 extendinglongitudinally thereof, which abuts the frame 5 when the rinting frameis in normal position, to iimit the movement of the parts and to holdSerial NO. 407,855.

the printing frame in. the inclined position shown in full lines inFigure 2.

A frame 11 is arranged at the rear of the frame 5, the frame 11 beinghinged at its upper end to the upper cross member of the frame 5 asshown at 12, and this frame which is an open substantially rectangularframe carries a filling of ruby glass. This frame is mounted to swingupward into the full line position of Figure 2, or to swing downward toshut off the light from the printing frame.

A partition 12 is arranged in inclined po sition across the hood 1, thetop of the partition being at the inner face of the top of the frame 5,while the bottom of the partition is at the inner face of the frame 4,and this partition has an opening through which the light rays may pass,the opening adapted. to be closed by the frame 11.

Referring to Figure 2, it will be seen that the partition is rabbeted atthe opening as indicated at 13, to receive the frame 11. The back of theprinting frame indicated at 14 is hinged to bar 15, as indicated at 16,and the bar is detachably connected to the upper cross member of theframe, by means of angle pins 17 which extend outwardly from the top ofthe printing frame. The bar seats down in the angle pins, and the bar ispressed away from the top of the printing frame by a plate spring 18which is arranged between the bar and the top of the printing frame.

A set screw 19 is journaled in the bar, passes through the spring, andhas threaded engagement with the printing frame, and by means of the setscrew the position of the bar may be adjusted. The back of the frame isheld closed by a latch lever 21 which is pivoted to the back asindicated at 22, and which engages a headed pin 23 on the printingframe.

A door 24 is provided in the back which is hinged to the back asindicated at 25, and the door extends the full width of the back. Whenthe door is opened, access is permitted to a portion of the picturebeing printed. This door is normally held closed by a latch 26 pivotedat 27 to the door, and engaging beneath the headed pin 28 on the back. Aplate 29 is; secured to the door longitudinally thereof and near itslower edge, and this plate extends beyond the door at its outer end asclearly shown in Figure 3. r

The extended end of the plate lies above a T-shaped extension on one ofthe arms 31 of an elbow lever whose other arm 32 is pivoted to theprinting frame as indicated at 33. A link 34 connects the arm 32 with alug 35 on the frame 11, the arrangement being such that when theprinting frame is swung upward into the dotted line position of Figure2, the frame 11 carrying the ruby glass will be swung down into theopening of the partition 12, cutting off the actinic rays. 7

it will be understood that the improved frame is adapted to be used in adark room with the end adjacent to the frame 4: of the hood in positionto receive the light from outside the dark room. New whenever the frameis in printing position, with the back and door closed, the ruby glasswill be lifted. Whenever the door is opened, or the back is released,the frame 11 will swing downward and. will close into the partition 12,shutting off the actinic rays.

The printing frame has vertical guides 86 on its rear face into which amask indicated. at 37 may be slipped for masking a portion of thepicture. The arm 32 of the. elbow lever moves in a vertical slot 38 inthe printing frame.

The extension frame 9 is normally prevented from swinging outward at itslower end by means of angle pins 39 which are pivoted to the frame 5,and which engage notched lugs 10 at the ends of the lower cross memberof the frame. When these pins are swung outward, the lower end of theextension will be released, and the entire extension and printing framemay swing outward as indicated dotted lines in Figure 2. V

The plate 2 may be lifted as shown in dotted lines in Figure 2 to permitinspection of the interior of the hood. A leaf ll is provided at thelower end of the'extension, the said leaf being secured to a shaft 42which is journaled in the extension, and the shaft has a knurled knob 43atits outer end for convenience in manipulating the same. Theleaf ll isfor the purpose of a reflector and also to shut off the lower portion ofthe frame when desired.

I claim 1. In a printing frame, a tubular hood open at its ends, an openend frame at each end of the hood, a printing frame hinged to the top ofone of the said end frames at the outer face thereof, a ruby glassholder pivoted to the said end frameat the inner face thereof, apartition arranged in inclined position transversel of the hood betweenthe top of the frame to which the ruby glass holder is hinged, and thebottom of the other end frame, and having an opening for receiving theruby glass holder, said printing frame having a hinged back arranged toopen, and a connection between the said back and the ruby glass holderfor closing said holder when the back is opened, the hood having aremovable top.

2. In a printing frame, a tubular hood open at its ends, an open endframe at each end of the hood, a printing frame hinged to the top of oneofthe said end frames at the outer face thereof, a ruby glass holderpivoted to the said end frame at the inner face thereof, a partitionarranged in inclined position transversely of the hood between the topof the frame to which the ruby glass holder is hinged and the bottom ofthe other end frame, and having an opening for receiving the ruby glassholder, said printing frame having a hinged back arranged to open, and aconnection between the said back and the ruby glass holder for closingsaid holder when the back is opened, a hood extension for the printingframe fitting into the end frame and ar 'anged to hold said printing fame in inclined position.

In a printing frame, a tubular hood open at its ends, an open end frameat each end of the hood, a printing frame hinged to the top of one ofthe said end frames at the outer face thereof, a ruby glass holderpivoted to the said end frame at the inner face thereof, a partitionarranged in inclined position transversely of the hood between the topof the frame to which the ruby glass holder is hinged and thebottom ofthe other end frame, and having an opening for receiving the ruby glassholder, saidprinting frame having a hinged back arranged to open, and aconnection between the .said back and the ruby glassv holder for closingsaid holder when the back is opened, said connection comprising an elbowlever pivoted to the end frame and having onearm connected with the rubyglass holder, the other arm having means for engagement by the hingedback when it is opened to swing the elbow lever.

4. In a printinglframe, a tubular hood open at its ends, an open endframe at each end of the hood, a printingiframe hinged to the top of oneof the said end frames at the outer face thereof, a ruby glass holderpivoted to the said end frame at the inner face thereof, a partitionarranged in in clined position. transversely of. the hood between thetop of the frame to whichthe ruby glass holder is hinged and the bottomof the other end frame, and having an opening for receiving the rubyglass holder, said printingframe having aihinged back arranged to open,and a connection between the said back and the ruby glass holder forclosing said holder when the back is opened, said hinged back havingahinged door'com trolling the ruby glass holder to closed and openposition when the hinged door is opened and closed.

5. In a printing frame, a tubular hood open at its ends, an open endframe ateach end of the hood, a printing frame hinged to the top of oneof the said end frames at the outer face thereof, a ruby glass holderpivoted to the said end frame at the inner face thereof, a partitionarranged in inclined position transversely of the hood between the topof the frame to which the ruby glass holder is hinged and the bottom ofthe other end frame, and having an opening for receiving the ruby glassholder, said printing frame having a hinged back arranged. to open, anda connection between the said back and the ruby glass holder for closingsaid holder when the back is opened, and a latch for holding the backclosed.

6. In a printing frame, a tubular hood open at its end, an open frame atone end of the hood, a printing frame hinged to u the top of said frameat the outer face thereof, the lower end of the printing frame swinginginward and outward to vary the inclination thereof, and a hood extensionconnected with the printing frame for 010s ing the space between thehood frame and the printing frame when the printing frame is adjusted.

7. In a printing frame, a standing open frame, a printing frame hingedlyattached to the upper part of said open frame at the outer face of thelatter, and an inverted channel shaped extension carried by the printingframe and adapted to engage with the standing frame to hold the printingframe in outwardly swung inclined relation to the plane of the openframe and to close the space between the printing frame and the standingframe.

8. In a printing frame, a standing open frame, a printing frame hingedto the top of the open frame at the outer face of the latter, a backhingedly attached to the print-- ing frame, said back being arranged toopen outwardly, a ruby glass holder pivoted to the standing frame at theinner face of the latter, a member connected at its upper end with theupper end of the standing frame and being inclined in respect theretofor limiting the swinging movement of the ruby glass holder toward theplane of the standing frame, a connection between the ruby glass holderand the printing frame back for moving the ruby glass holder against theinclined member when the printing frame back is open, and meansassociated with the standing frame and connected with the printing frameto hold the latter in clined when in closing relation to the standingframe.

9. In a printing frame, a standing open frame, a printing frame hingedlyattached to the upper part of said open frame at the outer face of thelatter, an inverted channel shaped extension carried by the printingframe and adapted to engage with the standing frame to hold the printingframe in outwardly swung inclined relation to the plane of the openframe and to close the space between the printing frame and the standingframe, and a reflector plate disposed transversely of said extension andbeing pivotally attached at its ends to the sides of the extension.

D. WEBB GRAY.

